San Antonio Weather Forecast

    • 48
    • 82

    Slight Chance Thunderstorms

    • 48
    • 86

    Slight Chance Thunderstorms

    • 49
    • 85

    Chance Thunderstorms

    • 47
    • 80

    Rain Showers

    • 47
    • 78

    Rain Showers

    • 47
    • 73

    Rain Showers

    • 44
    • 72

    Rain Showers

Today 20 Aug Southern San Luis Valley

Mostly sunny with a 20 percent chance of Thunderstorms. Highs 78 to 85. Northeast Winds around 10 Mph.

Tonight 20 Aug Southern San Luis Valley

Partly cloudy. Lows 46 to 53. Southeast Winds up to 10 Mph. Chance of precipitation 10 percent.

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San Antonio Temperature Statistics

August Temperature

San Luis Valley Regional Airport (29.8 miles)

  • Lowest 3 August, 2025

    39.7 °F

  • Average August

    66 °F

  • Highest 7 August, 2025

    91.7 °F

Climate (2020–Present)

San Luis Valley Regional Airport (29.8 miles)

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  • Average Low 2020–2025

    26.3 °F

  • Average 2020–2025

    44.4 °F

  • Average High 2020–2025

    62.3 °F
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